Table 1.
Baseline characteristics of subjects.
| Total subject number | 105 | |||
| M/F | 52/53 | |||
| Handedness (non-RH/RH) | 34/71 | |||
| EHI | RH: 88.5 ± 11.1 | |||
| non-RH: −39.6 ± 38.3 | ||||
| LFH (Y/N) | 39/66 | |||
| rs7794745 | A/A | A/T | p-value | |
| n | 57 | 48 | – | |
| M/F | 27/30 | 25/23 | X2 = 0.23 | n.s. |
| Age | 26.2 ± 6.8 | 26.2 ± 7.0 | t(103) = 0.03 | n.s. |
| Handedness (non-RH/RH) | 19/38 | 15/33 | X2 = 0.05 | n.s. |
| EHI | RH: 87.5 ± 12.5 | RH: 90.2 ± 9.4 | t(69) = −1.04 | n.s. |
| non-RH: −35.2 ± 39.1 | non-RH: −45.1 ± 37.9 | t(32) = 0.74 | n.s. | |
| LFH (Y/N) | 19/38 | 20/28 | X2 = 0.78 | n.s. |
| Education (years) | 15.7 ± 0.7 | 15.7 ± 0.6 | t(103) = 0.24 | n.s. |
| Hapmap (ss44810024) [ratio (%)]/our current study [ratio (%)] | 43/54.3 | 57/45.7 | X2 = 2.42 | n.s. |
| rs2710102 | G/G | A carriers (G/A and A/A) | p-value | |
| n | 54 | 51 | – | |
| M/F | 29/25 | 23/28 | X2 = 0.78 | n.s. |
| Age | 25.9 ± 6.5 | 26.6 ± 7.3 | t(103) = −0.55 | n.s. |
| Handedness (non-RH/RH) | 20/34 | 14/37 | X2 = 1.10 | n.s. |
| EHI | RH: 89.3 ± 11.0 | RH: 88.3 ± 11.5 | t(69) = 0.37 | n.s. |
| non-RH: −43.3 ± 39.0 | non-RH: −34.3 ± 38.1 | t(32) = −0.66 | n.s. | |
| LFH (Y/N) | 23/31 | 16/35 | n.s. | |
| Education (years) | 15.7 ± 0.6 | 15.7 ± 0.7 | t(103) = −0.31 | n.s. |
| Hapmap (ss44810024) [ratio (%)]/our current study [ratio (%)] | 55.3/51.4 | 44.7/48.6 | X2 = 0.32 | n.s. |
Characteristics of two SNPs (rs7794745 and rs2710102) of CNTNAP2. Bottom line: comparison of allele frequency between international HapMap Project (http://www.ncbi.nlm.nih.gov/projects/SNP/) and our current study. Abbreviations: n, number of subjects; M/F, males/females; RH, right-handed subjects; non-RH, non-right-handed subjects; EHI, Edinburgh Handedness Inventory; LFH, left-handed family history (LFH).